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<!-- Creation Date      : 2015-11-12T17:43:50.4448500+00:00 -->
<!-- Version            : 2.0.12.1 -->
<!-- Package ID         : F41BD4D3795D2C40F1F3404CF0E0A460-0000921299-001509 -->
<!-- Copyright (c) 2015 R. R. Donnelley & Sons Company. All Rights Reserved. -->
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  <element id="fgen_LicenseFeesAndMilestonesRevenue" name="LicenseFeesAndMilestonesRevenue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="fgen_CollaborationServicesAndOtherRevenue" name="CollaborationServicesAndOtherRevenue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="fgen_AstellasCollaborationAgreementMember" name="AstellasCollaborationAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_IncomeTaxExpenseBenefitUnrealizedHoldingGainLossOnAvailableForSaleSecurities" name="IncomeTaxExpenseBenefitUnrealizedHoldingGainLossOnAvailableForSaleSecurities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="fgen_IncreaseDecreaseInLeaseFinancingLiability" name="IncreaseDecreaseInLeaseFinancingLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="fgen_RevenueRecognitionByTypeTableTextBlock" name="RevenueRecognitionByTypeTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="fgen_UnitedStatesAndRestOfWorldMember" name="UnitedStatesAndRestOfWorldMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_AccountingPolicyLineItems" name="AccountingPolicyLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_AccountingPolicyTable" name="AccountingPolicyTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_FibrogenEuropeOyMember" name="FibrogenEuropeOyMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_ProceedsFromInitialPublicOfferingAndConcurrentPrivatePlacementNet" name="ProceedsFromInitialPublicOfferingAndConcurrentPrivatePlacementNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="fgen_UnderwritingDiscountsAndCommissions" name="UnderwritingDiscountsAndCommissions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="fgen_OfferingExpenses" name="OfferingExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="fgen_ProceedsFromUpfrontNonContingentAndTimeBasedPayments" name="ProceedsFromUpfrontNonContingentAndTimeBasedPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="fgen_DevelopmentAndRegulatoryApprovalMilestones" name="DevelopmentAndRegulatoryApprovalMilestones" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="fgen_CommercialSalesMilestone" name="CommercialSalesMilestone" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="fgen_AdditionalConsiderationBasedOnNetSales" name="AdditionalConsiderationBasedOnNetSales" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="fgen_ClinicalDevelopmentMilestone" name="ClinicalDevelopmentMilestone" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="fgen_PercentageOfFundingForCosts" name="PercentageOfFundingForCosts" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="fgen_ExpectedProceedsFromUpfrontNonContingentAndTimeBasedPayments" name="ExpectedProceedsFromUpfrontNonContingentAndTimeBasedPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="fgen_ReceiptFromUpfrontPayments" name="ReceiptFromUpfrontPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="fgen_DevelopmentMilestonePaymentReceived" name="DevelopmentMilestonePaymentReceived" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="fgen_AstraZenecaAgreementsMember" name="AstraZenecaAgreementsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_DevelopmentMilestonesMember" name="DevelopmentMilestonesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_SharedDevelopmentCosts" name="SharedDevelopmentCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="fgen_ProceedsFromUpfrontPayments" name="ProceedsFromUpfrontPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="fgen_ContingentPayments" name="ContingentPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="fgen_CoDevelopmentPayments" name="CoDevelopmentPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="fgen_ClinicalDevelopmentMilestonesMember" name="ClinicalDevelopmentMilestonesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_RegulatoryMilestonesMember" name="RegulatoryMilestonesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_MarketingApprovalMilestonesMember" name="MarketingApprovalMilestonesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_NonContingentPerformancePeriod" name="NonContingentPerformancePeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="fgen_PotentialMilestones" name="PotentialMilestones" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="fgen_SubstantiveMilestones" name="SubstantiveMilestones" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="fgen_RoyaltyRateOnNetRevenue" name="RoyaltyRateOnNetRevenue" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <element id="fgen_RemainingUpfrontNonContingentAndTimeBasedPayments" name="RemainingUpfrontNonContingentAndTimeBasedPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="fgen_ProceedsFromUpfrontPaymentsExtendedTerms" name="ProceedsFromUpfrontPaymentsExtendedTerms" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <element id="fgen_NonSubstantiveMilestones" name="NonSubstantiveMilestones" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="fgen_ChinaSingleUnitOfAccountingMember" name="ChinaSingleUnitOfAccountingMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_CumulativeRevenueLicenseAndCollaborationServicesRevenueRecognized" name="CumulativeRevenueLicenseAndCollaborationServicesRevenueRecognized" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="fgen_CashConsiderationReceivedUnderCollaborationAgreement" name="CashConsiderationReceivedUnderCollaborationAgreement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="fgen_LicenseMember" name="LicenseMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_WhenAndIfAvailableCompoundsMember" name="WhenAndIfAvailableCompoundsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_ManufacturingClinicalSuppliesMember" name="ManufacturingClinicalSuppliesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_CommitteeServicesMember" name="CommitteeServicesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_DevelopmentServicesInProgressMember" name="DevelopmentServicesInProgressMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_CoDevelopmentInformationSharingAndCommitteeServicesMember" name="CoDevelopmentInformationSharingAndCommitteeServicesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_LeaseFinancingObligationsMember" name="LeaseFinancingObligationsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_CeaseUseLiabilityMember" name="CeaseUseLiabilityMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <element id="fgen_AvailableForSaleSecuritiesContractualMaturityPeriod" name="AvailableForSaleSecuritiesContractualMaturityPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <element id="fgen_AccruedPreclinicalAndClinicalTrialCurrent" name="AccruedPreclinicalAndClinicalTrialCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <element id="fgen_AstellasMember" name="AstellasMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
</schema>
